Description

See the joined screenshot taken with about:performance with Firefox stable (65) on ArchLinux. Maximum for other websites is 50MB for heavy ones, here you can see 2GB+ and 700+MB. It's not instant and takes up some time to increase.
Energy impact was seen as a maximum of 60 while most of other websites are under 1.0.

Change History (3)

Additional information: it's visible on the screenshot, but I'm blocking many unwanted resources through uBlock origin/uMatrix. This could be from blocked requests stacking indefinitely, but this should definitely not happen.